1. Or 8720/3 Reference (shelfmark): Or 8720/3 Title: Risālah fī al-ʿamal bi-rubʿ al-mawsūm bi-al-muqanṭarāt Scope & Content: Author: Ibn al-Majdī, Aḥmad ibn Rajab 1366-1447 VIAF ID: 90039483 Subject: Astronomy, Arab--Early works to 1800 Collection Area: Oriental Manuscripts Languages: Arabic Date Range: 14th century Extent: 1 item